A.mfcu≥fcu,k,fcu,min≥0.85fcu,k B.mfcu≥1.05fcu,k,fcu,min≥0.85fcu,k C.mfcu≥fcu,k,fcu,min≥0.95fcu,k D.mfcu≥1.15fcu,k,fcu,min≥0.95fcu,k
A.20±5℃ B.20±4℃ C.20±3℃ D.20±2℃
A.0.1~0.3 B.0.3~0.5 C.0.5~0.8 D.0.8~1.0